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CIS2750 Exam Study Guide 100% Guaranteed Pass. Scripting Languages - AnswerGenerally Interpreted instead of compiled. This allows for rapid development and change due to immediate execution. Byte Code - AnswerSource Code that has been converted to an intermediate, similar to compilation. Execu...

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  • January 17, 2025
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  • 2024/2025
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Scripting Languages - Answer✔Generally Interpreted instead of compiled. This allows for rapid
development and change due to immediate execution.

Byte Code - Answer✔Source Code that has been converted to an intermediate, similar to
compilation. Executed by an interpreter which improves performance over purely interpreted
systems.

Extending - Answer✔Utilizing external programs and libraries to increase the functionality of
the language by binding existing programs to it.

Dynamic Typing - Answer✔System manages the types of variables without the programmer
explicitly stating the length or type of declaration.

Lists - Answer✔Ordered Collections of other objects that are accessed using an index.

Dictionaries - Answer✔Unordered collections of objects that are accessed using a key.

Tuples - Answer✔Immutable lists.

immutable1 = immutable2 - Answer✔Creates a copy of the tuple

mutable1 = mutable2 - Answer✔Creates a second variable that references the list

The Protocol Stack - Answer✔1. Communication Protocols
2. Built on top of each-other
3. Lowest Levels communicate bytes/packets between computers
4. Higher levels give fault tolerance
5. Highest levels are application specific

HTTP - Answer✔Hypertext Transfer Protocol

TCP - Answer✔Transmission Control Protocol

What does TCP do? - Answer✔Adds reliability, ordering, and error checking

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IP - Answer✔Internet Protocol
Relays Datagrams across networks
Routing Functionality
Basis of the internet

UDP - Answer✔User Datagram Protocol
Doesn't include reliability
Faster
Used for Gaming

When was HTTP/1, HTTP/2, and HTTP/3 published? - Answer✔1996, 2015, 2022 (Also
switched from QUIC to TCP in 2022)

Four Basic SQL Operations - Answer✔Select, Insert, Update, Delete

What are the 6 data types for SQL? - Answer✔Integer, Smallint, Decimal, Char, Varchar, Date

SQL: DESC - Answer✔When used in combination with "ORDER BY", creates an ordering in
descending order.

Aggregate Functions in SQL? - Answer✔COUNT, SUM, AVG, MAX, MIN

CROSS JOIN - Answer✔Multiplies the two tables into a new virtual table.

INNER JOIN - Answer✔Tables are combined based on a common column they share

OUTER JOIN - Answer✔Combines all rows of one table with only MATCHING rows from the
other table. Used to include rows that are missing (unmatched) in an inner join.

SELF JOIN - Answer✔Table joined to itself

LEFT OUTER JOIN - Answer✔( *= ) All rows from of left side of the join will be included. For
Example MoleculeAtom *= MoleculeBonds. All rows from MoleculeAtom will be included.

RIGHT OUTER JOIN - Answer✔(=* ) All rows from the right side of the join will be included.
For Example MoleculeAtom =* MoleculeBonds. All rows from MoleculeBonds will be included

FULL OUTER JOIN - Answer✔Ensures that all rows from both sides of the join will be
included.

SQL: VIEW - Answer✔A virtual table that does not actually exist but appears to the user as if it
did. Views can be used for security by hiding sensitive data from unauthorized users.



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